Cant get the volume on rc73 remote to control my audio receiver - DirecTV

#1
I have an HR44 box with the RC73 remote. I just recieved a replacement remote. The original remote that came with system would power off and on my tv and when I used volume or mute buttons it would change on my yamaha reciever. I got the new remote to work with my directv box and tv just fine. However no matter what code I use for my Yamaha reciever the remote still tries to change volume on my TV. Please help!

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